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IR21571 from IOR,International Rectifier

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16.602ms

IR21571

Manufacturer: IOR

Ballast Control, Below Resonance Protection, Thermal Overload Protection, Protection from Failure to Strike, Programmable Preheat Time and Run Frequency, Programmable Deadtime, Automatic Restart for Lamp Exchange in a 16-pin DIP package

Partnumber Manufacturer Quantity Availability
IR21571 IOR 1100 In Stock

Description and Introduction

Ballast Control, Below Resonance Protection, Thermal Overload Protection, Protection from Failure to Strike, Programmable Preheat Time and Run Frequency, Programmable Deadtime, Automatic Restart for Lamp Exchange in a 16-pin DIP package The IR21571 from International Rectifier is a high-performance, self-oscillating half-bridge driver designed for efficient power conversion applications. This integrated circuit (IC) combines a high-side and low-side gate driver with an oscillator, making it well-suited for driving MOSFETs or IGBTs in half-bridge configurations.  

Key features of the IR21571 include a built-in dead-time control to prevent shoot-through currents, ensuring reliable operation in switching power supplies, motor drives, and DC-DC converters. Its high-voltage floating channel allows direct interfacing with high-side power switches, while the oscillator frequency can be adjusted using external timing components for flexible design integration.  

With a robust output stage capable of sourcing and sinking high peak currents, the IR21571 ensures fast switching transitions, minimizing power losses. The device also incorporates undervoltage lockout (UVLO) protection for both the high-side and low-side drivers, enhancing system safety.  

Operating over a wide voltage range and designed for industrial-grade reliability, the IR21571 is a versatile solution for applications requiring precise and efficient half-bridge control. Its compact design and integrated functionality simplify circuit layouts, making it a preferred choice for engineers working on high-efficiency power systems.

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